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134-9021-4 - Mercury Trigger, 4 Cylinder, (NLA, replaced by 18-99408)

CDI Electronics 134-9021-4 - Mercury Trigger, 4 Cylinder, (NLA, replaced by 18-99408)
CDI Electronics 134-9021-4 - Mercury Trigger, 4 Cylinder, (NLA, replaced by 18-99408)

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Part Number
134-9021-4

Manufacturer
CDI Electronics

Company/Parts Merger: CDI Electronics 134-9021-4 is now Sierra Marine 18-99408

134-9021-4 - Trigger - (4 Cyl.)

Replaces: Mercury #99021A2, 99021A6 and99021K2 

Fits: 1988-1997 (80 JET,100,115 & 125HP)

Technical information (PDF)
Warranty (PDF)
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CDI Electronics 134-9021-4 - Mercury Trigger, 4 Cylinder, (nla, Replaced By 18-99408) is equivalent to parts:

  • 18-99408 Sierra Marine
  • 99021K2 Mercury Marine
  • 99021A6 Mercury Marine
  • 99021A2 Mercury Marine
  • 99021A 6 Mercury Marine

UPC: 736983851574

CDI Catalog Online
CDI produces state of the art ignition components that have become the industry standard for quality electronic ignition systems.

Special Note: CDI Electronics has merged wtih Sierra Marine. Some legacy CDI part numbers will still be in effect and sold for some time. Some legacy CDI part numbers have been discontinued and have been replaced by new 2025 Sierra Marine part numbers.

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